Rare diseases · Sign or symptom

Anomalous origin of the left common carotid artery from the brachiocephalic artery

HP:0031635

What it means

The left common carotid artery normally originates from the aortic arch. This term refers to an origin of this artery from the brachiocephalic artery.

Rare diseases that can present with this1

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Anomalous origin of the left common carotid artery from the brachiocephalic trunk

Anomalous origin of the left common…

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This page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.